dell inspiron 640m xp home wireless driver

my sister has bought the above laptop second hand,some one had put 7 in it,so i removed windows 7 ,unfortunately they have removed the back up recovery from the hard drive,so i put in windows xp home as that is what it was built for,my question is i know this is a wireless laptop,what drivers do i need to install to get wireless internet on it please?

Or you can plug in an ethernet cable & let Windows update take care of the appropriate wireless card driver
click here for the ethernet driver if it's not installed ( download the drivers via a working PC onto a USB)

retep888,got the wired intenet working,then put intel proset wireless in it,it found my hub,asked me to put device ownership password in,when i try to type in the box the laptop beeps,so i put the password in notepad copy and pasted it in and still it wont connect,is there some other program i could use,or can you tell me what i am doing wrong please?